Author:Du Preez, M; Conroy, RM; Ligondo, S; Hennessy, J; Elmore-Meegan, M; Soita, A; McGuigan, KGDate:Sep 2011The authors report the results of a randomized controlled intervention study (September 2007 to March 2009) investigating the effect of solar disinfection (SODIS) of drinking water on the incidence of dysentery, nondysentery diarrhea, and ...Read more
Author:Mellor, JR; Coville, NJ; Sofianos, AC; Copperthwaite, RGDate:23 Dec 1997The initial Raney copper WGS activity based on catalyst volume has been shown to be comparable to industrial and co-precipitated alternatives under varying reaction conditions. The presence of zinc oxide in the Raney copper structure was shown ...Read more
Author:Mellor, JR; Coville, NJ; Sofianos, AC; Copperthwaite, RGDate:23 Dec 1997Characterisation of partially leached Raney copper catalysts demonstrated that the chemical nature of the reactant surface could be determined by controlling the leaching process. Initial water-gas shift (WGS) activity of the Raney copper ...Read more
Author:Mkwelo, Simpiwe; Nicolls, F; De Jager, GDate:Nov 2007This paper presents another approach to segmenting a scene of rocks on a conveyor belt for the purposes of measuring rock size. Rock size estimation instruments are used to monitor, optimize and control milling and crushing in the mining ...Read more
Author:Olwal, TO; Van Wyk, BJ; Djouani, K; Hamam, Y; Siarry, P; Ntlatlapa, Ntsibane SDate:Aug 2009Multi-Radio Multi-Channel (MRMC) systems are key to power control problems in Wireless Mesh Networks (WMNs). In this paper, researchers present a range based dynamic power control for MRMC WMNs. First, WMN is represented as a set of disjoint ...Read more
Author:De Witt, JJ; Nel, Willem AJDate:Oct 2008A dechirp on receive (DoR) concept demonstrator was recently implemented on the Fynmeet radar system of the CSIR, in an attempt to extend its high range resolution (HRR) measurement capabilities. Based on the low dynamic range observed in ...Read more
Author:Mkwelo, Simpiwe; De Jager, G; Nicolls, FDate:Nov 2007This paper presents another approach to segmenting a scene of rocks on a conveyor belt for the purposes of measuring rock size. Rock size estimation instruments are used to monitor, optimize and control milling and crushing in the mining ...Read more
Author:Guest, IW; Pauw, CKDate:Apr 1993A rank detector is used to defect instantaneous received power fades in tracking radar. On detection of a fade, censorship of the angular position measurement is implemented in a Kalman tracking filter. It is shown that this technique can ...Read more
Author:Landman, WA; Barnston, AG; Vogel, CDate:Sep 2015Some of the biggest emerging markets economies include countries in South America, Asia and Africa. In the global south, political and developmental similarities (e.g. climate variability occurring in conjunction with marked developmental ...Read more
Author:du Preez, WB; de Beer, DJDate:Jun 2006The ability to design and develop new products is generally accepted as a strong enabler for improving the competitiveness of a country’s manufacturing industry. This paper describes the establishment and evolution of the Rapid Product ...Read more
Author:Mtsweni, Jabu S; Abdullah, HDate:Nov 2014Information and communication technologies (ICTs) have an immense potential as a tool for development. It is now common knowledge that advances in the use of technology can improve economic opportunities for the poor, improve service delivery ...Read more
Author:Chowdhury, M; Oputu, O; Kebede, Mesfin A; Cummings, F; Cespedes, ODate:Dec 2015Scarcity of rapid and large scale synthesis of functional materials, hinders the progress from laboratory scale to commercial applications. In this study, we report a rapid and large scale synthesis of Co(Sub3)O(sub4) octahedron micron size ...Read more
Author:Forsyth, GG; Richardson, DM; Brown, PJ; Van Wilgen, BWDate:Jan 2004Gum trees, or eucalypts (Eucalyptus species), have been targeted for invasive alien plant clearing programmes in many parts of South Africa. This has caused some dissatisfaction where the species concerned also have useful characteristics, ...Read more
Author:Ngamsom, B; Fourie, L; Tarn, MD; Kumar, S; Moodley, K; Land, K; Pamme, NDate:Oct 2016The present investigation reports isolation and detection of E. coli O157:H7 employing a simple and portable microfluidic device based on immiscible filtration assisted by surface tension (IFAST) and adenosine triphosphate (ATP) bioluminescence ...Read more
Author:Kleynhans, W; Salmon, BP; Wessels, Konrad J; Olivier, JCDate:Aug 2015Recent development has identified the benefits of using hyper-temporal satellite time series data for land cover change detection and classification in South Africa. In particular, the monitoring of human settlement expansion in the Limpopo ...Read more
Author:Ramunyisi, Ndivhuwo S; Badenhorst, Jacob AC; Moors, Carmen; Gumede, TebogoDate:Sep 2018Speech-driven command and control is increasingly gaining momentum in the world around us. Using human speech to control appliances in trendy living spaces allows a user to control many appliances remotely. This paper discusses the rapid ...Read more
Author:Smith, S; Chen, H; Moodley, K; Joubert, T; Land, KDate:Nov 2014We present a method for rapid and low-cost development of microfluidic diagnostic devices using paper-based techniques. Specifically, the implementation of fluidic flow paths and electronics on paper are demonstrated, with the goal of producing ...Read more
Author:Pereira, MFVDate:Nov 2006The goal is to use Rapid Prototyping Techniques (RPT) for the direct manufacture of die components which can produce low volumes parts. The advantages of the results include: Conformal cooling; Good heat dissipation; Shorter turn around time; ...Read more
Author:Pereira, MFVT; Williams, M; Bruwer, RDate:2009This paper highlights the work undertaken at the CSIR on the issue of rapid die manufacturing through the application and evaluation of a rapid prototyping technique and coating technologies applied to die components of a high pressure casting ...Read more